Saturday, March 4, 2023

LOOK-ALIKE OF RANI LAKSHMIBAI

 Jhalkaribai

She was born on 22nd November in 1830 at Bhojla village near Jhansi. She was a close friend and commander of the women's army wing of Rani Lakshmibai. She attained martyrdom fighting against the British in the war of Independence of 1857.

Once, Rani Lakshmibai invited the women of the villages of Jhansi to attend Gauri (Maa Shakti) Puja at the Jhansi Fort. Jhalkaribai, wife of Pooran Kori, a soldier of the Jhansi army, was among the ladies who accompanied other village ladies to Jhansi fort to be part of the Puja. Lakshmibai’s eyes fell on Jhalkaribai.Rani was struck by Jhalkaribai’s uncanny resemblance with her.

Lakshmibai enquired about her look-alike. Rani had lost her mother when she was 4 years old. Jhalkaribai too lost her mother at a very young age. Besides, Jhalkaribai killed a leopard with her herding stick while tending cattle.She was also involved in other brave exploits.

Lakshmibai immediately inducted Jhalkaribai into the women contingent of the Jhansi Army called Durga Dal. Later, during battle with the British, on the 10th day, a traitor opened the gate of Jhansi fort for the British to enter. It was Jhalkaribai who disguised as Rani and misled the British army, facilitated Lakshmibai’s safe escape from the fort for gathering forces. Jhalkaribai attained martyrdom at the hands of the British.

Friday, March 3, 2023

DON'T WORRY BE HAPPY

 Keep your worries away

One fine morning, ‘Death’ was walking towards a city.

A man curiously asked him, “What are you going to do today?”

“I’m going to take 100 people,” Death replied.

“That’s horrible!” the man exclaimed.

“That’s the way it must be,” Death said. “That’s what I’m destined to do.”

The man hurried along to warn everyone about Death’s ruthless plan. When evening fell, he met death again.

“You told me you would take just 100 people,” the man said. “But you have taken 1000 instead. Why did 1000 have to die?”

“I kept my word,” Death responded. “I only took 100 people; ‘Worry’ took the others.”

When there was an outbreak of COVID-19, every day, every hour and every minute, we were flooded with news regarding deaths due to the deadly virus. Thousands around us caught the disease each day. While some recovered, many others died because no proper cure or vaccine was found for it,

There were no schools, no entertainment, no social gathering or outing to keep us engaged. We remained confined to our homes and worried about the situation.

But does worrying make the situation any better? No. It only makes the situation worse. As the adage says “Worry never robs tomorrow of its sorrow; it only saps today of its joy.”

Remember, worry is, and always will be, a fatal disease of the heart. Therefore, release the regrets of yesterday, refuse the fears of tomorrow, and receive the peace of today. Read good books, watch inspirational videos, and learn new lessons.

Always be engaged.

Be prayerful, and pray for all, as well.

Do not forget to thank God for the wonderful gift of life.

Thursday, March 2, 2023

MEET THE SCIENTIST

 Antoine Lavoisier


I am Antoine Lavoisier, a famous chemist. I was born in France on August 26, 1743. I grew up in an aristocratic family. My father was a layer but my mother died when I was only five years old.

I didn’t practice law because I found science more interesting. Since I had inherited a good deal of money when my mother died I was able to live as a nobleman and pursued various interests. I also worked in various government positions and was elected to the Royal Academy of Science in 1764.In 1775, I set up a laboratory in Paris where I could run experiments. This lab became a gathering place of scientists and I made many important discoveries in chemistry. 


Do you want to know what scientific discoveries I have done?

The Law of Conservation of Mass:

One of the main scientific theories in my time was the phlogiston theory. This theory thought fire was made up of an element called phlogiston. But I disproved this theory and demonstrated that there was an element called oxygen that played a major role in combustion. I also showed that the mass of products in a reaction are equal to the mass of the reactants and no mass is lost in a chemical reaction. This is known as the Law of Conservation of Mass and is one of the most important and basic laws of modern chemistry and physics.

The Elements and Chemical Nomenclature:

I spent a lot of time isolating elements and breaking down chemical compounds. I also invented a system of naming chemical compounds that were made up of multiple elements and named the element hydrogen. The First Chemistry Textbook:

I also wrote the first Elementary Treatise of Chemistry. This was the first chemistry textbook. The book contained a list of elements. I died when the French Revolution began. I wanted to remain separate from the revolution. But because I had worked as a tax collector for the government, I was branded a traitor and was executed on May 8, 1794 by guillotine.

Wednesday, March 1, 2023

WORLD'S FIRST COMMERCIAL SAND BATTERY

 Energy from Sand

THE Vatajankoski power plant in Kankaanpää, a small town located northwest of Helsinki, Finland’s capital, is unique. It has the world’s first commercial scale battery powered by sand. 

 

The battery acts as a reservoir for excess electricity produced by the town’s solar and wind farms and stores it in the form of heat energy. The sand, 110 tonnes of it, is fully enclosed in a 7-m-tall steel container. The air inside the sand is heated up to 600 degrees Celsius using a resistance heater that runs on solar and wind energy. The hot air is then circulated by a fan through heat exchange pipes. The thick insulation surrounding the sand keeps the temperature inside the battery at 600 degrees Celsius, even in freezing weather conditions. The battery stores 8 MWh (megawatt hours) of thermal energy when it is full. In use, the battery discharges 200 kilowatts of power through the heat exchange pipes—enough to provide heating and hot water to 100 homes and a public swimming pool in Kankaanpää. It supplements the power supplied from the city grid. The sand is charged at night when clean electricity is more cheaply available. The electrical energy is transferred to the battery using a closed loop air-pipe. The battery is low maintenance. The sand is the cheap, low quality one rejected by builders, and not the high quality river sand utilised for construction. The fan is the only moving part and it’s easy to replace if necessary. Sand retains heat for a long time and can store power for months. The sand can be heated and cooled any number of times. It becomes denser after a while, at which point more sand has to be added. Four young Finnish engineers, Tommi Eronen, Markku Ylönen, Liisa Naskali and Ville Kivioja, who were childhood friends, invented the battery.

How does a sand battery score over a lithium-ion battery?


Lithium ion batteries that power laptops, smart phones and electric vehicles degrade continually even when not in use. A sand battery doesn’t age because there is no chemical reaction. Lithium batteries are not completely safe as they are flammable. Lithium extraction and refining has a much greater impact on the environment because of the carbon dioxide emissions. The sand battery is also eight to ten times cheaper than a lithium battery for the same amount of energy.


Tuesday, February 28, 2023

28 FEBRUARY

                National Science Day

                     

National Science Day is celebrated every year on 28 February. It is observed to honour the contributions of our scientists. On this day, in 1928, an Indian physicist, Chandrasekhara Venkata Raman, made an important discovery in the field of spectroscopy, which was later named after him – the Raman Effect.

C V Raman, as he is popularly known, was born on 7 November, 1888. He was the first Indian scientist to win the prestigious Nobel Prize in Physics for the discovery of what is later named as Raman Effect in 1930. He discovered that when light passes through a transparent material, some of the deflected light beams change in wavelength. This phenomenon was named ‘Raman Scattering’ or Raman Effect. He was awarded the Bharat Ratna in 1954. So, in memory of his discovery National Science Day is celebrated. C V Raman passed away on 21 November, 1970.

The first National Science Day was observed on 28 February, 1987. Educational institutions celebrate the National Science Day by organising public speeches, Radio & TV Programmes, science movies and exhibitions on various themes and concepts, debates, quiz competitions, lectures, seminars and science exhibitions. Let us take a pledge on this day to live a life with scientific temper. Let us make our country proud with our contributions to the development of science.

The theme for Science Day for the year 2023 is Global Science For Global Wellbeing.




Sunday, February 26, 2023

FIRST FEMALE DOCTOR OF INDIA

Dr. Anandi Gopal Joshi


Today, February 26, marks the death anniversary of Anandi Gopal Joshi, India's first female doctor and one of the earliest female physicians in the country. Also referred to as Anandibai Joshi, she was the first woman from the erstwhile Bombay presidency (present-day Maharashtra) to study and graduate with a two-year degree in western medicine in the United States. Originally named Yamuna, Joshi was born on March 31, 1865, and brought up in a Marathi Brahmin family. As was the tradition during that time, she was married at the age of just nine to Gopalrao Joshi, a postal clerk and a widower almost twenty years older than her. After marriage, Yamuna's husband renamed her 'Anandi'. Gopalrao Joshi was a strong supporter of women's education, and since this was considered unusual at that time, he was considered a progressive thinker.

Anandi Gopal Joshi is the first Indian female to study western medicine and became an inspiration to generations of women to pursue their further education.

What Inspired Her To Pursue Medicine?

Anandibai gave birth to a baby boy at the age of just 14, but the child could not survive more than ten days due to a lack of medical care. The incident was a turning point in Anandi's life and inspired her to do something about healthcare in India. After Gopalrao tried to enrol her in missionary schools and did not work out, they moved to Calcutta. There she learned to read and speak English and Sanskrit. In 1880, Gopalrao sent a letter to Royal Wilder, a renowned American missionary, stating his wife's interest in inquiring about a relevant post in the US for himself. Wilder published the correspondence in his Princeton's Missionary Review. Theodicia Carpenter, a Roselle, New Jersey resident, happened to read it while waiting to see her dentist. She wrote to the former, impressed by Anandibai's desire to pursue medicine and Gopalrao's support for his wife. Carpenter and Anandibai developed a close bond and came to refer to each other as "aunt" and "niece."
While the husband-wife duo was in Calcutta, Anandibai's health started deteriorating. She suffered from constant headaches, weakness, occasional fever, and breathlessness. Theodicia sent her medicines from America but unfortunately showed no results. In 1883, Gopalrao was transferred to Serampore, and he decided to send his wife by herself to the US for her medical studies despite her poor health condition. Though concerned, Gopalrao convinced her to set an example for other women by pursuing higher education. Anandi Gopal Joshi applied to the Women's Medical College of Pennsylvania and was granted admission. Upon learning Anandibai's plans to pursue higher education in the West, orthodox Indian society strongly criticised her. Later, she addressed the community at Serampore College Hall, explaining her decision to go to America and obtain a medical degree. She emphasised the need for female doctors in India, emphasising that Hindu women could better serve as physicians to their counterparts. Her speech received wide publicity, and financial contributions started pouring in from all over India. In March 1886, Anandibai graduated with an MD. The topic of her thesis was "Obstetrics among the Aryan Hindoos", and her thesis utilised references from both American medical textbooks and Ayurvedic texts. On her graduation, Queen Victoria sent her a congratulatory message. In late 1886, Anandibai returned to India and received a grand welcome. The princely state of Kolhapur appointed her as the physician-in-charge of the female ward of the local Albert Edward Hospital.
Anandibai died of tuberculosis early the following year, on February 26, 1887, in Pune before turning 22. Her ashes were sent to Theodicia Carpenter, who placed them in her family cemetery in New York. Despite practising medicine for only two to three months, she rose to fame for her sheer determination and hard work to become the first Indian female to study western medicine and a source of inspiration to all others who came after her.

Saturday, February 25, 2023

STORY

 The person hindering your growth

One day all the employees reached the office, and they saw a big advice on the door, on which it was written:“Yesterday the person who has been hindering your growth in this company, passed away. We invite you to join the funeral”.

In the beginning, they all felt sad for the death of one of their colleagues. But after a while they started getting curious to know who that man was who hindered the growth of his colleagues and the company itself.

The excitement was such that the security agents were ordered to control the crowd in the room. The more the people reached the coffin, the more excitement heated up.

Everyone thought:”Who is this guy who was hindering my progress? Well, at least he died!”

One by one, the thrilled employees got closer to the coffin. When they looked inside it they suddenly became speechless. They stood nearby the coffin, shocked in silence, as if someone had touched the deepest part of their soul.

There was a mirror inside the coffin: everyone who looked inside it could see themselves. There was a sign next to the mirror that said:”There is only one person who is capable to set limits to your growth: it is YOU.”

Our life does not change when our boss changes, when our teachers change, when our friends change. Our life changes when WE change and realise that we are the only one responsible for our life.

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